watfaq-dns 0.1.2

A good DNS server
Documentation 
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use std::future::Future;
use std::net::SocketAddr;

use hickory_proto::op::Message;
use serde::Deserialize;

mod dummy_keys;
mod handler;
#[cfg(test)]
mod tls;
mod utils;

pub use handler::get_dns_listener;
pub use handler::DNSError;

#[derive(Debug, Deserialize, Clone)]
#[serde(rename_all = "kebab-case")]
pub struct DoHConfig {
    pub addr: SocketAddr,
    pub ca_cert: DnsServerCert,
    pub ca_key: DnsServerKey,
    pub hostname: Option<String>,
}

#[derive(Debug, Deserialize, Clone)]
#[serde(rename_all = "kebab-case")]
pub struct DoH3Config {
    pub addr: SocketAddr,
    pub ca_cert: DnsServerCert,
    pub ca_key: DnsServerKey,
    pub hostname: Option<String>,
}

#[derive(Debug, Deserialize, Clone)]
#[serde(rename_all = "kebab-case")]
pub struct DoTConfig {
    pub addr: SocketAddr,
    pub ca_cert: DnsServerCert,
    pub ca_key: DnsServerKey,
}

pub type DnsServerKey = Option<String>;
pub type DnsServerCert = Option<String>;

#[derive(Debug, Default, Clone)]
pub struct DNSListenAddr {
    pub udp: Option<SocketAddr>,
    pub tcp: Option<SocketAddr>,
    pub doh: Option<DoHConfig>,
    pub dot: Option<DoTConfig>,
    pub doh3: Option<DoH3Config>,
}

#[cfg_attr(test, mockall::automock)]
pub trait DnsMessageExchanger {
    fn ipv6(&self) -> bool;
    fn exchange(&self, message: &Message)
        -> impl Future<Output = Result<Message, DNSError>> + Send;
}